Problem: I need on building recommender systems to find music that interest users. Solution: I built a personalized model, and showed the significant improvement provided by personalization. I’m going to explore the song data and the recommendations made by my model. Download: song_data.gl Start: # Use Graphlab library import graphlab # Use Sframe of Graphlab to load data song_data =…
Read an NIfTI files This is example to read some NIfTI files and execute some basic data manipulation, by using this example code you must be install package oro.nifti,fslr,AnalyzeFMRI first. Download a NIfTI file from Neurohacking_data repository library(oro.nifti) url <- “https://raw.githubusercontent.com/muschellij2/Neurohacking/master/Basic_Data_Manipulations/Kirby21/SUBJ0001-01-MPRAGE.nii.gz” destfile <- “SUBJ0001-01-MPRAGE.nii.gz” fname <- file.path(getwd(), destfile) download.file(url, destfile,mode=”wb”) # NIfTI is binaryfile format maskurl <-…
Read an NIfTI file This is example to read a NIfTI file and apply TRANSFORMATIONS AND SMOOTHING , by using this example code you must be install package oro.nifti,AnalyzeFMRI: first. Download a NIfTI file from Neurohacking_data repository library(oro.nifti) url <- “https://raw.githubusercontent.com/muschellij2/Neurohacking/master/Basic_Data_Manipulations/Kirby21/SUBJ0001-01-MPRAGE.nii.gz” destfile <- “Output_3D_File.nii.gz” name <- file.path(getwd(), destfile) download.file(url, destfile,mode=”wb”) # NIfTI is binaryfile format T1 <-…
Read an DICOM file This is example to read a DICOM file and display an image , by using this example code you must be install package oro.dicom first. Download a DICOM file from Neurohacking_data repository library(oro.dicom) url <- “https://raw.githubusercontent.com/muschellij2/Neurohacking_data/master/BRAINIX/DICOM/T1/IM-0001-0001.dcm” destfile <- “IM-0001-0001.dcm” name <- file.path(getwd(), destfile) download.file(url, destfile,mode=”wb”) # DICOM is binaryfile format dcm <- readDICOMFile(destfile)…
Read an NIfTI file This is example to read a NIfTI file and display an image , by using this example code you must be install package oro.nifti) first. Download a NIfTI file from Neurohacking_data repository library(oro.nifti) url <- “https://raw.githubusercontent.com/muschellij2/Neurohacking_data/master/BRAINIX/NIfTI/Output_3D_File.nii.gz” destfile <- “Output_3D_File.nii.gz” name <- file.path(getwd(), destfile) download.file(url, destfile,mode=”wb”) # NIfTI is binaryfile format nii_T1 <- readNIfTI(destfile)…
F-Test This is the case study about f-test, f-statistic application. Question: Prices of three brand fashion: Snapzi, Irisa and LoloMoons is “similar” or not? We have the null hypothesis : Note. So, null hypothesis in one-way ANOVA or f-statistic usually is “all of them is similar”. And alternative hypothesis would be that at least 2 “guy”…
This is a quiz in inference statistic at udacity In this quiz, we want to study : Who has more shoes – males or females? Firstly, we set a null hypothesis that : Males and Femals have the same number of shoes. So, alternative hypothesis is Males and Femals have not the same number of shoes. This…
